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To: Jim Blandy <jimb@zwingli.cygnus.com>
Cc: gdb-patches@sources.redhat.com
Subject: Re: RFA: i386 Linux: provide correct type for orig_eax register
References: <20020111222448.A73EC5E9D8@zwingli.cygnus.com>
From: Mark Kettenis <kettenis@science.uva.nl>
Date: Sat, 12 Jan 2002 05:13:00 -0000
In-Reply-To: Jim Blandy's message of Fri, 11 Jan 2002 17:24:48 -0500 (EST)
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X-SW-Source: 2002-01/txt/msg00324.txt.bz2

Jim Blandy <jimb@zwingli.cygnus.com> writes:

> This fixes a failure in callfuncs.exp.

What failure?

> 2002-01-11  Jim Blandy  <jimb@redhat.com>
> 
> 	Return the correct virtual type for orig_eax.
> 	* i386-linux-tdep.c (i386_linux_register_virtual_type): New function.
> 	* config/i386/tm-linux.h (i386_linux_register_virtual_type): New
> 	declaration.
> 	(REGISTER_VIRTUAL_TYPE): Override definition in tm-i386.h; use the
> 	Linux-specific version.

Hmm.  You're compiling GDB on a system that doesn't have
PTRACE_GETFPXREGS in <sys/ptrace.h> isn't it?  In that case, I think
your patch is just papering over a more fundamental flaw in the
Linux/x86 port: not always including the SSE registers in the register
file.

I think we should #define HAVE_SSE_REGS unconditionally in
config/i386/tm-linux.h.  Later, when things are properly multi-arched,
we can decide whether we actually display thos registers based on the
actual processor model.

Mark